Dennis I. Spencer

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Henderson, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Knife structure for shoring assemblies used in excavations
- Patent number 5,527,137
- Issue date Jun 18, 1996
- Dennis I. Spencer
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Protective structure for excavations
- Patent number 5,310,290
- Issue date May 10, 1994
- Dennis I. Spencer
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Wheeled carriage assembly for trench shields
- Patent number 5,306,103
- Issue date Apr 26, 1994
- Dennis I. Spencer
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING